Dr. Gregory A. Vawter Profile

Dr. Gregory A. Vawter

Sr. Member Technical Staff at Sandia National Labs

SPIE Involvement:

Author

Publications (31)

Proceedings Article | 6 March 2013 Paper

InP tunable ring resonator filters

A. Tauke-Pedretti, G. Vawter, E. Skogen, G. Peake, M. Overberg, C. Alford, D. Torres, F. Cajas

Proceedings Volume 8628, 86280O (2013) https://doi.org/10.1117/12.999288

KEYWORDS: Resonators, Waveguides, Optical filters, Photonic integrated circuits, Optical signal processing, Tunable filters, Electronic filtering, Quantum wells, Instrument modeling, Filtering (signal processing)

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Proceedings Article | 16 February 2010 Paper

A platform for multiplexed sensing of biomolecules using high-Q microring resonator arrays with differential readout and integrated microfluidics

J. Wright, I. Brener, K. Westlake, D. Branch, M. Shaw, G. Vawter

Proceedings Volume 7605, 76050C (2010) https://doi.org/10.1117/12.842283

KEYWORDS: Sensors, Waveguides, Resonators, Microrings, Refractive index, Microfluidics, Etching, Servomechanisms, Multiplexing, Liquids

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SPIE Journal Paper | 1 October 2006

Fabrication and measurement of wideband achromatic waveplates for the mid-infrared region using subwavelength features

Robert Boye, Shanalyn Kemme, Joel Wendt, Alvaro Cruz-Cabrera, Gregory Vawter, Charles Alford, Tony Carter, Sally Samora

JM3, Vol. 5, Issue 04, 043007, (October 2006) https://doi.org/10.1117/12.10.1117/1.2397081

KEYWORDS: Wave plates, Optical design, Etching, Polarization, Gallium arsenide, Birefringence, Polarimetry, Phase measurement, Polarizers, Metals

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Proceedings Article | 3 March 2006 Paper

InP-based monolithically integrated optical gain-competition inverter

A. Hsu, G. Vawter, E. Skogen, G. Peake, K. Baucom, R. Shul, C. Alford, B. Salters, F. Cajas, W. Chow

Proceedings Volume 6124, 612418 (2006) https://doi.org/10.1117/12.643995

KEYWORDS: Etching, Integrated optics, Laser damage threshold, Laser optics, Modulation, Laser scattering, Reflectivity, Logic, Semiconductor lasers, Optical logic

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Proceedings Article | 23 January 2006 Paper

Fabrication issues for a chirped subwavelength form-birefringent polarization splitter

S. Kemme, J. Wendt, G. Vawter, A. Cruz-Cabrera, D. Peters, R. Boye, C. Alford, T. Carter, S. Samora

Proceedings Volume 6110, 61100J (2006) https://doi.org/10.1117/12.646796

KEYWORDS: Etching, Polarization, Gallium arsenide, Beam splitters, Optical design, Ion beams, Ions, Argon, Aberration correction, Semiconducting wafers

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Proceedings Article | 31 March 2005 Paper

High-Q microring resonator for biochemical sensors

Junpeng Guo, Michael Shaw, G. Vawter, G. Hadley, Peter Esherick, Charles Sullivan

Proceedings Volume 5728, (2005) https://doi.org/10.1117/12.589467

KEYWORDS: Microrings, Resonators, Waveguides, Silicon, Cladding, Liquids, Sensors, Semiconducting wafers, Mach-Zehnder interferometers, Silica

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Proceedings Article | 22 January 2005 Paper

Fabrication techniques for low-loss silicon nitride waveguides

Michael Shaw, Junpeng Guo, Gregory Vawter, Scott Habermehl, Charles Sullivan

Proceedings Volume 5720, (2005) https://doi.org/10.1117/12.588828

KEYWORDS: Waveguides, Silicon, Cladding, Photonic integrated circuits, Semiconducting wafers, Oxides, Fabrication, Silica, Chemical mechanical planarization, Oxidation

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Proceedings Article | 14 June 2004 Paper

Characterization of Si3N4/SiO2 planar lightwave circuits and ring resonators

Junpeng Guo, G. Allen Vawter, Michael Shaw, G. Ronald Hadley, Peter Esherick, Anisha Jain, Charles Alford, Charles Sullivan

Proceedings Volume 5350, (2004) https://doi.org/10.1117/12.529641

KEYWORDS: Waveguides, Silicon, Silica, Photonic integrated circuits, Resonators, Refractive index, Cladding, Semiconducting wafers, Polarizers, Polarization

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Proceedings Article | 28 May 2004 Paper

Adiabatic mode converters for photonic integrated circuits and devices

G. Allen Vawter, Thor Bakke, Sayan Mukherjee, Charles Sullivan

Proceedings Volume 5355, (2004) https://doi.org/10.1117/12.525867

KEYWORDS: Waveguides, Polymers, Modulators, Polymer multimode waveguides, Single mode fibers, Transformers, Semiconductors, Photonic integrated circuits, Polymer optical fibers, Oxidation

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Proceedings Article | 12 November 1999 Open Access

RF and millimeter-wave photonics at Sandia National Laboratories

G. Allen Vawter, Charles Sullivan

Proceedings Volume 3795, (1999) https://doi.org/10.1117/12.370190

KEYWORDS: Waveguides, Photonic integrated circuits, Optical amplifiers, Modulators, Mode locking, Semiconductor lasers, Mach-Zehnder interferometers, Polarization, Photodiodes, Photonics

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Proceedings Article | 22 June 1998 Paper

Applications of photonic crystals in optoelectronics

Shawn-Yu Lin, Joel Wendt, G. Allen Vawter, James Fleming, Dale Hetherington, Bradley Smith, W. Zubrzycki, Edmond Chow, Steven Kurtz, B. Hammons, Pierre Villeneuve, John Joannopoulos, Rana Biswas, Kai Ho, Mihail Sigalas

Proceedings Volume 3419, 34190X (1998) https://doi.org/10.1117/12.311017

KEYWORDS: Optoelectronics, Photonic crystals, Silicon photonics, Crystals

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Proceedings Article | 5 May 1998 Paper

Monolithic wavelength-graded VCSEL and wavelength-selective photodetector arrays for wavelength-division-multiplexed optical interconnect applications

Julian Cheng, Sanh Luong, Yuxin Zhou, Andrew Alduino, Jun Lu, Christopher Hains, N. Li, Hong Hou, G. Allen Vawter

Proceedings Volume 3288, (1998) https://doi.org/10.1117/12.307561

KEYWORDS: Vertical cavity surface emitting lasers, Channel projecting optics, Absorption, Photodetectors, Multiplexing, Optical interconnects, Free space optics, Semiconducting wafers, Metalorganic chemical vapor deposition

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Proceedings Article | 22 December 1997 Paper

Monolithic wavelength-graded VCSEL and wavelength-selective photodetector arrays for WDM applications

Julian Cheng, Sanh Luong, Gerry Ortiz, Yuxin Zhou, Jun Lu, Hong Hou, B. Hammons, G. Allen Vawter

Proceedings Volume 3290, (1997) https://doi.org/10.1117/12.298233

KEYWORDS: Vertical cavity surface emitting lasers, Photodetectors, Mirrors, Absorption, Wavelength division multiplexing, Metalorganic chemical vapor deposition, Free space optics, Semiconducting wafers, Reflectivity

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Proceedings Article | 4 April 1997 Paper

High-speed optical transceiver and routing switch using VCSEL-based integrated optoelectronics

Julian Cheng, Yin-Chen Lu, Bo Lu, Gerry Ortiz, Andrew Alduino, Christopher Hains, Hong Hou, Michael Hafich, G. Allen Vawter, John Zolper

Proceedings Volume 3005, (1997) https://doi.org/10.1117/12.271097

KEYWORDS: Vertical cavity surface emitting lasers, Switches, Photodetectors, Switching, Optoelectronics, Optical fibers, Integrated optics, Receivers, Modulation, Transceivers

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Proceedings Article | 1 April 1996 Paper

Techniques for increasing output power from mode-locked semiconductor lasers

Alan Mar, G. Allen Vawter

Proceedings Volume 2684, (1996) https://doi.org/10.1117/12.236928

KEYWORDS: Mode locking, Optical amplifiers, Semiconductor lasers, Pulsed laser operation, Picosecond phenomena, Waveguides, Amplifiers, Waveguide lasers, Oscillators, Pulse shaping

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Proceedings Article | 20 April 1995 Paper

NIR high-efficiency subwavelength diffractive structures in semiconductors

Robert Smith, Mial Warren, Joel Wendt, G. Allen Vawter

Proceedings Volume 2404, (1995) https://doi.org/10.1117/12.207462

KEYWORDS: Diffraction gratings, Diffraction, Optical design, Semiconductors, Etching, Gallium arsenide, Near infrared, Diffractive optical elements, Teeth, Binary data

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Proceedings Article | 10 April 1995 Paper

Integration of diffractive lenses with addressable vertical-cavity laser arrays

Mial Warren, Tu Du, Joel Wendt, G. Allen Vawter, Richard Carson, Kevin Lear, Sean Kilcoyne, Richard Schneider, John Zolper

Proceedings Volume 2398, (1995) https://doi.org/10.1117/12.206343

KEYWORDS: Vertical cavity surface emitting lasers, Lenses, Receivers, Optical interconnects, Etching, Gallium arsenide, Lens design, Prototyping, Measurement devices, Electron beam lithography

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Proceedings Article | 5 April 1995 Paper

High-speed optical interconnect technology for a reconfigurable multiprocessor network

Julian Cheng, Yin-Chen Lu, Bo Lu, Andrew Alduino, Gerry Ortiz, John Zolper, John Klem, G. Allen Vawter

Proceedings Volume 2400, (1995) https://doi.org/10.1117/12.206327

KEYWORDS: Switches, Vertical cavity surface emitting lasers, Modulation, Optoelectronics, Data conversion, Switching, Optical switching, Integrated optics, Binary data, Channel projecting optics

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Proceedings Article | 30 June 1994 Paper

III-V compound semiconductor strip-loaded waveguide devices for PICs: design for minimum crosstalk and high density

G. Allen Vawter, G. Ronald Hadley

Proceedings Volume 2146, (1994) https://doi.org/10.1117/12.178495

KEYWORDS: Waveguides, Photonic integrated circuits, Heterojunctions, Absorption, Ion implantation, Etching, Compound semiconductors, Mach-Zehnder interferometers, Modulators, Light scattering

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Proceedings Article | 30 June 1994 Paper

Semiconductor microcavity lasers

Paul Gourley, Joel Wendt, G. Allen Vawter, Mial Warren, Thomas Brennan, B. Hammons

Proceedings Volume 2146, (1994) https://doi.org/10.1117/12.178523

KEYWORDS: Mirrors, Semiconductor lasers, Quantum wells, Optical microcavities, Semiconducting wafers, Near field optics, Semiconductors, Photons, Charged particle optics, Wafer-level optics

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Proceedings Article | 30 June 1994 Paper

Metal-ion spin-on glasses: novel materials for active waveguides

Carol Ashby, Charles Sullivan, G. Allen Vawter, John Hohimer, G. Ronald Hadley, Daniel Neal

Proceedings Volume 2146, (1994) https://doi.org/10.1117/12.178534

KEYWORDS: Waveguides, Glasses, Semiconductor lasers, Luminescence, Laser applications, Optical amplifiers, Semiconducting wafers, Laser development, Ions, Refractive index

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Proceedings Article | 10 June 1994 Paper

Fabrication of high-performance GaAs/AlGaAs optical phase modulators for microwave/photonic integrated circuits

Stanley Kravitz, G. Allen Vawter, Vincent Hietala, Morris Snipes, Marcelino Armendariz, Richard Carson, B. Hammons, Ronald Leibenguth

Proceedings Volume 2155, (1994) https://doi.org/10.1117/12.177393

KEYWORDS: Modulators, Integrated optics, Integrated circuits, Electrodes, Waveguides, Gold, Scanning electron microscopy

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Proceedings Article | 10 June 1994 Paper

High-performance GaAs/AlGaAs optical phase modulators for microwave/photonic integrated circuits

Vincent Hietala, Stanley Kravitz, Marcelino Armendariz, G. Allen Vawter, Richard Carson, Ronald Leibenguth

Proceedings Volume 2155, (1994) https://doi.org/10.1117/12.177420

KEYWORDS: Modulators, Phased array optics, Integrated optics, Photonic integrated circuits, Integrated circuits, Control systems, Integrated circuit design, Signal processing, Process control, Antennas

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Proceedings Article | 2 June 1994 Paper

Phase-locked arrays of vertical-cavity surface-emitting lasers

Mial Warren, Kevin Lear, Paul Gourley, G. Ronald Hadley, J. Lott, G. Allen Vawter, Scott Chalmers, Thomas Brennan, B. Hammons, John Zolper

Proceedings Volume 2145, (1994) https://doi.org/10.1117/12.177131

KEYWORDS: Vertical cavity surface emitting lasers, Mirrors, Reflectivity, Modulation, Phase shift keying, Near field, Etching, Near field optics, Gallium arsenide, Dielectric mirrors

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Proceedings Article | 2 May 1994 Paper

Reconfigurable optical switches with monolithic electrical-to-optical interfaces

Julian Cheng, Ping Zhou, John Zolper, Kevin Lear, G. Allen Vawter, Ronald Leibenguth, A. Adams

Proceedings Volume 2153, (1994) https://doi.org/10.1117/12.174522

KEYWORDS: Vertical cavity surface emitting lasers, Switches, Modulation, Optical switching, Optoelectronics, Integrated optics, Binary data, Interfaces, Heterojunctions, Channel projecting optics

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Proceedings Article | 1 July 1993 Paper

Surface-emitting laser-based optical switching: an update

Ping Zhou, Julian Cheng, Shang Sun, Stephen Hersee, Marek Osinski, John Zolper, David Myers, G. Allen Vawter

Proceedings Volume 1849, (1993) https://doi.org/10.1117/12.147104

KEYWORDS: Vertical cavity surface emitting lasers, Switches, Switching, Resistance, Optical switching, Modulation, Optoelectronics, Electronics, Positive feedback, Optical logic

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Proceedings Article | 25 February 1993 Paper

Integrated test and package methods for integrated photonics

Richard Carson, Stanley Kravitz, Vincent Hietala, Nathan Harff, Marcelino Armendariz, G. Allen Vawter

Proceedings Volume 1791, (1993) https://doi.org/10.1117/12.141167

KEYWORDS: Waveguides, Modulators, Phased array optics, Photonic integrated circuits, Modulation, Phase shift keying, Phase shifts, Antireflective coatings, Packaging, Reliability

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Proceedings Article | 2 December 1992 Paper

Photonic integrated-circuit elements for phased-array steering systems

G. Allen Vawter, Vincent Hietala, Stanley Kravitz, Richard Carson, Marcelino Armendariz, W. Meyer

Proceedings Volume 1703, (1992) https://doi.org/10.1117/12.138400

KEYWORDS: Modulators, Waveguides, Phase shift keying, Photonic integrated circuits, Etching, Phased array optics, Modulation, Adaptive optics, Phase shifts, Interferometers

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Proceedings Article | 1 December 1992 Paper

Processing issues and technologies for optoelectronics-integrated circuits and devices (invited)

G. Allen Vawter

Proceedings Volume 1582, (1992) https://doi.org/10.1117/12.2321800

KEYWORDS: Photonic integrated circuits, Waveguides, Etching, Modulators, Optoelectronics, Phase shift keying, Mirrors, Integrated optics, Phased array optics, Integrated circuit design

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Proceedings Article | 1 August 1991 Paper

Direct optical phase shifter for phased-array systems

G. Allen Vawter, Vincent Hietala, Stanley Kravitz, W. Meyer

Proceedings Volume 1476, (1991) https://doi.org/10.1117/12.45565

KEYWORDS: Waveguides, Modulators, Phased array optics, Photonic integrated circuits, Phase shifts, Control systems, Integrated optics, Optical components, Antennas, Chemical elements

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Proceedings Article | 1 August 1991 Paper

Phased-array antenna control by a monolithic photonic integrated circuit

Vincent Hietala, G. Allen Vawter, W. Meyer, Stanley Kravitz

Proceedings Volume 1476, (1991) https://doi.org/10.1117/12.45588

KEYWORDS: Antennas, Photonic integrated circuits, Phase shifts, Phased array optics, Microwave radiation, Heterodyning, Integrated optics, Sensors, Optical fibers, Channel projecting optics

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Showing 5 of 31 publications

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